May 23–26Mountainfilm in Telluride
One of the country’s longest-running film festivals includes an impressive panel of speakers this year, among them author Cheryl Strayed, National Geographic explorer Juan Martinez, climber Alex Honnold, and alpinist Conrad Anker.

May 25Festival of Brewpubs
Beer festival season is officially upon us and Arapahoe Basin’s 13th annual Festival of Brewpubs marks one of the first celebrations. Taste beer from a dozen Colorado breweries while enjoying live music and prime people watching.

May 31Insane Inflatable 5K
If you’re not quite up for Warrior Dash, Tough Mudder, or one of the other many “extreme” races, but still want the fun and camaraderie that comes with an obstacle course event, the Insane Inflatable 5K might be for you. The untimed run, held at Dick’s Sporting Good Park, includes 12 obstacles over the course of the three-mile run from dodging giant balls rolled at you to careening down a steep inflatable slide, catching air, and landing on a giant inflatable pad.